Malicious PDF — malware analysis report

Static analysis result for SHA-256 52207e02349659f4…

MALICIOUS

PDF

42.2 KB Created: 2020-08-22 19:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5dbd2ea3c4318b88930bb60706efcb0 SHA-1: 23ab1ecc12712b44e9915073339563fbc17a130f SHA-256: 52207e02349659f4ba14513b890c0cf1223bdb7c479a5c7fe2259b69ddfdadf0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to appear as free clip art, but the primary link redirects to a known malicious domain. The ML classifier strongly indicates maliciousness, and the PDF structure is consistent with SEO-based link farms used for malicious redirection. No scripts were extracted, but the document body and heuristics point to a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=baby+boy+clip+art+images+free In PDF document text
    • http://rasan.eaglesmusiconline.com/uploads/1/3/1/4/131453150/6081345.pdfIn PDF document text
    • http://files.v1cafe.com/uploads/1/3/2/7/132740511/xokikog.pdfIn PDF document text
    • http://dumawosej.kenplattlaw.net/uploads/1/3/0/9/130968984/5077531.pdfIn PDF document text
    • http://files.acrylicdreams.com/uploads/1/3/0/8/130813668/gutilixozewamu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/woliperuzege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9279/4774/files/85440771616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5529/0270/files/14939322138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3502/3765/files/junevafipakusideluxenido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4634/5640/files/conversion_de_cm_a_pulgadas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3752/2085/files/cambridge_phrasal_verbs_dictionary_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6436/1113/files/basamafixebudolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5093/3155/files/horizontal_rule_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2011/5358/files/83253816034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4788/4699/files/bixeluxin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0449/files/razusikovadalizura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/42946529481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4707/4464/files/thermodynamics_cengel_7th.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6655 5624 bytes
SHA-256: 5efbec888b449f4469bfb18faa221b66f1abcd277ca3e219a3e208e2f3914cb7
font_01_sfnt_off00007964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7964 10060 bytes
SHA-256: 5a9314d35241e2f44a891bdb2437428fa9b3e2c5d87db4255aa422e6a37a3715

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